<template>
  <div class="cfou">
    <h2>第四个组件</h2>
    <button>获得数据</button>
  </div>
</template>

<script>
export default {
  name: "CFou"
}
</script>

<style scoped>
  .cfou{
    width: 100%;
    height: 80%;
    background-color: cyan;
  }
</style>